A lipid profile is a blood test that measures the levels of different types of fats in the bloodstream. It typically includes measurements of cholesterol (both LDL and HDL) and triglycerides. This test helps assess an individual's risk for heart disease and other cardiovascular conditions. The results of a lipid profile can guide healthcare providers in recommending lifestyle changes or medications. For example, high levels of LDL cholesterol may indicate a need for dietary adjustments or cholesterol-lowering drugs, while higher levels of HDL cholesterol are generally considered protective against heart disease.